code: def setUp(self):
      self.data = TSVDataSource(
          SafeFileWrapper(
              tests_module.test_file("compositional_seq2seq_unit.tsv")
          ),
          test_file=None,
          eval_file=None,
          field_names=["text", "seqlogical"],
          schema={"text": str, "seqlogical": str},
      )
      self.masked_tensorizer = MaskedTokenTensorizer.from_config(
          MaskedTokenTensorizer.Config(
              column="seqlogical", masking_function=TreeMask.Config()
          )
      )
      self._initialize_tensorizer(self.masked_tensorizer)
  
file_path: pytext/pytext/data/test/mask_tensorizers_test.py
imports: import types
  import unittest
  from typing import List
  from pytext.data.masked_tensorizer import MaskedTokenTensorizer
  from pytext.data.masked_util import MaskEverything, RandomizedMaskingFunction, TreeMask
  from pytext.data.sources.data_source import SafeFileWrapper
  from pytext.data.sources.tsv import TSVDataSource
  from pytext.utils.test import import_tests_module
label_desc: Use image node_id 1 for calling the MaskTensorizersTest obj's underlying member method code with example usage: obj.setUp() without return types